Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

59.7°F

Measurement Time: Monday, October 6, 2025, 5:15 PM PDT

Temperature Locations

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Local Points of Interest

Stanislaus National Forest; Colfax Spring, CA; Mather, CA; Harden Flat, CA

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Tuolumne River

Station Name: TUOLUMNE R BL EARLY INTAKE NR MATHER CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 2,369 feet / 722 meters

Nearest Address:
Cherry Lake Rd
Groveland, CA 95321
Tuolumne County

GPS Coordinates: 37.8815908, -119.9701824

Nearby Water Temperatures

Tuolumne River, Groveland, CA (1.3 mi)
Cherry Creek, Groveland, CA (6.6 mi)
Tuolumne River, Groveland, CA (10.1 mi)
Tuolumne River, Groveland, CA (17.1 mi)
Merced River, Yosemite Valley, CA (24.7 mi)
Middle Fork San Joaquin River, Mammoth Lakes, CA (51.3 mi)
Deadman Creek, Mammoth Lakes, CA (57.0 mi)
Hot Creek, Mammoth Lakes, CA (62.8 mi)
Hot Creek, Mammoth Lakes, CA (63.4 mi)
San Joaquin River, Friant, CA (63.4 mi)
Hot Creek, Mammoth Lakes, CA (64.6 mi)
Trout Creek, South Lake Tahoe, CA (71.7 mi)
Upper Truckee River, South Lake Tahoe, CA (71.9 mi)
General Creek, Tahoma, CA (81.3 mi)
South Fork American River, Rescue, CA (82.9 mi)

Weather for Groveland, California

Current Weather

61.3°F
Clear
Conditions: Clear
Humidity: 51%
Feels Like: 61.3°F
Wind: ENE 6.7 mph
Wind Gusts: 14.1 mph
Pressure: 29.92 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Tue
H: 82°F
L: 60°F
Sunny
Wed
H: 78°F
L: 62°F
Sunny
Thu
H: 64°F
L: 52°F
Sunny
Fri
H: 67°F
L: 52°F
Sunny
Sat
H: 65°F
L: 49°F

Air Quality

PM2.5: 4.25 μg/m3
PM10: 4.95 μg/m3
Carbon Monoxide: 142.85 μg/m3
Nitrogen Dioxide: 5.15 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 58 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:47 AM
Sunset: 6:33 PM
Daylight: 11 hrs 32 mins
Moonrise: 6:47 PM
Moon Transit: 12:52 AM
Moonset: 7:40 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

12:22 AM - 2:52 AM
8:40 AM - 11:10 AM

Minor Periods

6:17 PM - 7:47 PM
7:10 AM - 8:40 AM

Action Rating: 5 out of 5

Tuesday, October 7, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 71.7°F
Average Humidity: 29%
Chance of Rain: 0%
Wind: 8.7 mph
UV Index: 1.3

Air Quality

AQI: 1 - Good
PM2.5: 4.98 μg/m3
PM10: 6.69 μg/m3
Carbon Monoxide: 157.21 μg/m3
Nitrogen Dioxide: 5.57 μg/m3
Sulphur Dioxide: 1.57 μg/m3
Ozone: 82.28 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:47 AM
Sunset: 6:33 PM
Daylight: 11 hrs 32 mins
Moonrise: 6:47 PM
Moon Transit: 12:52 AM
Moonset: 7:40 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

12:22 AM - 2:52 AM
8:40 AM - 11:10 AM

Minor Periods

6:17 PM - 7:47 PM
7:10 AM - 8:40 AM

Action Rating: 5 out of 5

Wednesday, October 8, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 70.8°F
Average Humidity: 36%
Chance of Rain: 0%
Wind: 10.5 mph
UV Index: 1.3

Air Quality

AQI: 1 - Good
PM2.5: 5.4 μg/m3
PM10: 7.26 μg/m3
Carbon Monoxide: 154.49 μg/m3
Nitrogen Dioxide: 6.3 μg/m3
Sulphur Dioxide: 1.84 μg/m3
Ozone: 85.52 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:47 AM
Sunset: 6:32 PM
Daylight: 11 hrs 30 mins
Moonrise: 7:21 PM
Moon Transit: 1:45 AM
Moonset: 8:58 AM
Moon Phase: Full
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
9:34 AM - 12:04 AM

Minor Periods

6:51 PM - 8:21 PM
8:28 AM - 9:58 AM

Action Rating: 4 out of 5

Thursday, October 9, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 57.9°F
Average Humidity: 55%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 1.3

Air Quality

AQI: 1 - Good
PM2.5: 11.3 μg/m3
PM10: 18.23 μg/m3
Carbon Monoxide: 172.73 μg/m3
Nitrogen Dioxide: 8.46 μg/m3
Sulphur Dioxide: 2.97 μg/m3
Ozone: 89.56 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:47 AM
Sunset: 6:31 PM
Daylight: 11 hrs 27 mins
Moonrise: 8:02 PM
Moon Transit: 2:42 AM
Moonset: 10:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

2:12 AM - 4:42 AM
10:33 AM - 1:03 PM

Minor Periods

7:32 PM - 9:02 PM
9:47 AM - 11:17 AM

Action Rating: 2 out of 5

Friday, October 10, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 58.4°F
Average Humidity: 44%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 1.2

Air Quality

AQI: 1 - Good
PM2.5: 10.72 μg/m3
PM10: 17.71 μg/m3
Carbon Monoxide: 201.31 μg/m3
Nitrogen Dioxide: 10.54 μg/m3
Sulphur Dioxide: 2.22 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:46 AM
Sunset: 6:29 PM
Daylight: 11 hrs 25 mins
Moonrise: 8:52 PM
Moon Transit: 3:43 AM
Moonset: 11:35 AM
Moon Phase: Waning Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

3:13 AM - 5:43 AM
11:35 AM - 2:05 PM

Minor Periods

8:22 PM - 9:52 PM
11:05 AM - 12:35 AM

Action Rating: 2 out of 5

Saturday, October 11, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 53.7°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 11 mph
UV Index: 0

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 12:46 AM
Sunset: 6:28 PM
Daylight: 11 hrs 23 mins
Moonrise: 9:52 PM
Moon Transit: 4:47 AM
Moonset: 12:47 AM
Moon Phase: Waning Gibbous
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

4:17 AM - 6:47 AM
12:39 AM - 3:09 PM

Minor Periods

9:22 PM - 10:52 PM
12:17 AM - 1:47 PM

Action Rating: 3 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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